A 50-metre flounder for 35 knotsAlia Yachts unveils ‘Atlantide’

Sören Gehlhaus

 · 08.11.2025

‘Atlantide’: The aluminium-carbon yacht is said to reach speeds of up to 35 knots with three water jets.
Photo: Guillaume Plisson
Details of the 50-metre-long ‘Atlantide’ have been released by the Turkish shipyard Alia Yachts. Equipped with three waterjets, the aluminium-carbon monohull is expected to reach speeds of up to 40 knots. The striking design was conceived by Philippe Briand and his Vitruvius team.

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A 50-metre yacht doesn’t need multiple decks to turn heads. ‘Atlantide’ only needs two. And a stealth-like, flat-bottomed design that would pass for a Lamborghini on the road. Furthermore, with their expansive deck area above the tapered hull, these 50-metre yachts resemble aircraft carriers. Their understated appearance is also reminiscent of the slightly shorter Alia sister yacht SAN think.

Exciting hybrid design

Philippe Briand’s firm, Vitruvius Yacht Design, developed the low-profile hull with generous glazing and the huge, continuous deck. At eleven metres, ‘Atlantide’ is unusually wide for a planing yacht. The folding terraces at the stern provide even more deck space and bring passengers closer to the sea.

Mulder Design was responsible for the design. The Dutch firm specialises in large and fast formats​ specialised in this field and helped the 44-metre-long “Octopussy” achieve a speed of 53.17 knots as early as 1988. For the hull of the ‘Atlantide’, the construction team chose Alustar, a material with 20 per cent higher tensile strength than conventional aluminium. For the superstructure, however, they opted for carbon fibre to create a structure that is both particularly light and rigid.

Stylish and fast Alia format

​Although she appears flat, ‘Atlantide’, with a volume of 498 gross tonnes, offers generous accommodation for the owner and guests. The interiors were designed by Guillaume Rolland of the Paris-based studio Liaigre.

“The ALY501 embodies everything Alia stands for: innovation, precision and emotion,” explains Gökhan Çelik, President of Alia Yachts. “She is designed to be fast, sophisticated and fearless. Proof that performance and luxury can coexist beautifully.”

Alia Yachts: Turkish precision with a global reach

Since its foundation in 2008, Alia Yachts has established itself as one of Turkey’s leading names in custom-built yachts. The production site in the Antalya Free Trade Zone covers an area of 30,000 square metres and, with its 700 skilled workers, enables a high degree of vertical integration. From aluminium, steel and composite hulls right through to interior fittings, upholstery and teak decks – Alia Yachts carries out almost all production stages in-house. Insights into the Alia Shipyard Halls.

Technical Specifications for ‘Atlantide’

  • Length: 50 metres
  • Width: 11 metres
  • Material: Alustar aluminium with carbon fibre components
  • Propulsion: 3 water jets
  • Top speed: 35 knots
  • Tonnage: 498 GT
  • Exterior design: Vitruvius Yacht Design
  • ​Interior design: Liaigre
  • Design: Mulder Design
  • Shipyard: Alia Yachts, 2026

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Sören Gehlhaus

Sören Gehlhaus

Stellvertretender Chefredakteur BOOTE EXCLUSIV

Sören Gehlhaus wurde 1981 in Berlin geboren und besegelte auf Jollen die Unterhavel, in den Ferien den Ratzeburger See und die Ostsee auf „Dickschiffen“. Zeitgleich mit dem Beginn des Studiums in Lübeck trat 2001 das Kitesurfen auf den Plan, und die intensive Ausübung des neuen Sports sorgte für den beruflichen Schwenk zum Journalismus. Nach Volontariat beim b&d Verlag in Hamburg folgten viele Jahre der redaktionellen Arbeit für ein Kitesurf-Magazin und 2018 der Wechsel zu BOOTE EXCLUSIV.

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